ERROR_INVALID_ACL Error: 1336 Posted on by Webmaster IT Support Forum › Forums › Windows › Windows 8 › Applications › ERROR_INVALID_ACL Error: 1336 Tagged: Error 1336, ERROR_INVALID_ACL This topic contains 0 replies, has 1 voice, and was last updated by Webmaster 3 years, 7 months ago. Author Posts June 22, 2015 at 3:08 pm #1161 WebmasterKeymaster When trying to install a program, you get this error: ERROR_INVALID_ACL Error: 1336 (0x538) The access control list (ACL) structure is invalid Error 1336 is caused by a corrupted ACL structure on part of your file system. An ACL, or Access Control List are responsible for containing lists of who has access to a folder structure or file. To fix the error 1336, open a command prompt as administrator, navigate to the directory with the invalid ACL (using the cd command) and run this command: icacls * /T /Q /C /RESET If you still get error 1336, take ownership of the file or directory first, by using the takeown /R /F * command. You should then be able to read and write to the directory structure / file without getting the ERROR_INVALID_ACL error. Author Posts You must be logged in to reply to this topic.